Male African lion resting on a rock in Namibia

Field Guide Expedition

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Wild king cobra rearing up with its hood raised in Hong KongAnimal of the dayKing CobraReptilia

Today's field note

King Cobra

Ophiophagus hannah

The king cobra is the world's longest venomous snake, reaching lengths of 10 to 13 feet and occasionally more. It primarily eats other snakes, including venomous species, and is the only snake known to build a nest for its eggs.

Habitat

Forest

Diet

Carnivore

Family

Elapidae

Trend

Decreasing

Status

Vulnerable

Notebook margin

Notable animal facts

Featuring King Cobra today

Handy highlights for quick reference, conversation, or the start of a lesson.

01
1

The king cobra is the only snake species known to build a nest for its eggs, using coils of dead leaves and other vegetation.

02
2

It is primarily ophiophagous, meaning it mainly eats other snakes, including venomous species and occasionally other king cobras.

03
3

It is the world's longest venomous snake, with confirmed lengths exceeding 18 feet.

04
4

Although its venom is not the most toxic drop-for-drop among snakes, a single bite can deliver a very large volume of venom.

05
5

When threatened, a king cobra can raise the front third of its body off the ground, bringing its head roughly to the eye level of an adult human.

06
6

Despite the genus name Ophiophagus meaning 'snake-eater,' the king cobra is not classified in the true cobra genus Naja.

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Species
178
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